Date: Sat, 17 Jan 2015 16:10:15 +0100 From: "Herbert J. Skuhra" <herbert@oslo.ath.cx> To: current@FreeBSD.org Subject: Re: svn commit: r272568 - head/sys/net Message-ID: <20150117151015.GA63617@oslo.ath.cx> In-Reply-To: <201410051943.s95JhbCp073535@svn.freebsd.org> References: <201410051943.s95JhbCp073535@svn.freebsd.org>
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On Sun, Oct 05, 2014 at 07:43:37PM +0000, Hiroki Sato wrote: > Author: hrs > Date: Sun Oct 5 19:43:37 2014 > New Revision: 272568 > URL: https://svnweb.freebsd.org/changeset/base/272568 > > Log: > Virtualize if_bridge(4) cloner. Hi, after this commit I always get a kernel panic when I stop my vnet jails. With a recent kernel this only happens when if_bridge is loaded as a module. savecore: writing core to /var/crash/vmcore.4 savecore: reboot after panic: mtx_lock() of destroyed mutex @ /usr/src/sys/modules/if_bridge/../../net/if_bridge.c:1814 dump (textdump=0) at pcpu.h:219 #1 0xffffffff802ded1e in db_dump (dummy=<value optimized out>, dummy2=0, dummy3=0, dummy4=0x0) at /usr/src/sys/ddb/db_command.c:543 #2 0xffffffff802de7bd in db_command (cmd_table=0x0) at /usr/src/sys/ddb/db_command.c:449 #3 0xffffffff802de534 in db_command_loop () at /usr/src/sys/ddb/db_command.c:502 #4 0xffffffff802e0fc0 in db_trap (type=<value optimized out>, code=0) at /usr/src/sys/ddb/db_main.c:251 #5 0xffffffff8051e5f1 in kdb_trap (type=3, code=0, tf=<value optimized out>) at /usr/src/sys/kern/subr_kdb.c:654 #6 0xffffffff8071c2e2 in trap (frame=0xfffffe00980ae680) at /usr/src/sys/amd64/amd64/trap.c:542 #7 0xffffffff80700652 in calltrap () at /usr/src/sys/amd64/amd64/exception.S:231 #8 0xffffffff8051dcee in kdb_enter (why=0xffffffff807e37e8 "panic", msg=<value optimized out>) at cpufunc.h:63 #9 0xffffffff804e54e9 in vpanic (fmt=<value optimized out>, ap=<value optimized out>) at /usr/src/sys/kern/kern_shutdown.c:739 #10 0xffffffff804e5339 in kassert_panic (fmt=<value optimized out>) at /usr/src/sys/kern/kern_shutdown.c:634 #11 0xffffffff804d038a in __mtx_lock_flags (c=0xfffffe00016ca278, opts=0, file=0xffffffff8141cb48 "/usr/src/sys/modules/if_bridge/../../net/if_bridge.c", line=1814) at /usr/src/sys/kern +/kern_mutex.c:215 #12 0xffffffff8141a510 in bridge_ifdetach () from /boot/kernel/if_bridge.ko #13 0xffffffff805b1c0a in if_detach_internal (ifp=0xfffff80005c50000, vmove=0) at /usr/src/sys/net/if.c:963 #14 0xffffffff805b188f in if_detach (ifp=0xffffffff80b98530) at /usr/src/sys/net/if.c:894 #15 0xffffffff805bdfc6 in lo_clone_destroy (ifp=0xfffff800059a4800) at /usr/src/sys/net/if_loop.c:117 #16 0xffffffff805b955f in if_clone_destroyif (ifc=0xfffff8000538a580, ifp=0x0) at /usr/src/sys/net/if_clone.c:684 #17 0xffffffff805b9e48 in if_clone_detach (ifc=<value optimized out>) at /usr/src/sys/net/if_clone.c:458 #18 0xffffffff805bde56 in vnet_loif_uninit (unused=<value optimized out>) at /usr/src/sys/net/if_loop.c:168 #19 0xffffffff805cf217 in vnet_destroy (vnet=0xfffff800053fc6c0) at /usr/src/sys/net/vnet.c:593 #20 0xffffffff804b9fad in prison_deref (pr=0xffffffff80a8b3b0, flags=Cannot access memory at address 0x3 ) at /usr/src/sys/kern/kern_jail.c:2582 #21 0xffffffff804bb637 in sys_jail_remove (td=<value optimized out>, uap=<value optimized out>) at /usr/src/sys/kern/kern_jail.c:2248 #22 0xffffffff8071d21a in amd64_syscall (td=0xfffff80005c50000, traced=0) at subr_syscall.c:133 #23 0xffffffff8070093b in Xfast_syscall () This system is running in Virtualbox. Is this a known issue? -- Herbert
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